procedure List.3 (#Attr.2, #Attr.3):
    let Test.37 = lowlevel ListLen #Attr.2;
    let Test.34 = lowlevel NumLt #Attr.3 Test.37;
    if Test.34 then
        let Test.36 = lowlevel ListGetUnsafe #Attr.2 #Attr.3;
        let Test.35 = Ok Test.36;
        ret Test.35;
    else
        let Test.33 = Struct {};
        let Test.32 = Err Test.33;
        ret Test.32;

procedure List.4 (#Attr.2, #Attr.3, #Attr.4):
    let Test.15 = lowlevel ListLen #Attr.2;
    let Test.13 = lowlevel NumLt #Attr.3 Test.15;
    if Test.13 then
        let Test.14 = lowlevel ListSet #Attr.2 #Attr.3 #Attr.4;
        ret Test.14;
    else
        ret #Attr.2;

procedure Test.1 (Test.2):
    let Test.38 = 0i64;
    let Test.30 = CallByName List.3 Test.2 Test.38;
    let Test.31 = 0i64;
    let Test.29 = CallByName List.3 Test.2 Test.31;
    let Test.8 = Struct {Test.29, Test.30};
    joinpoint Test.26:
        let Test.17 = Array [];
        ret Test.17;
    in
    let Test.23 = StructAtIndex 1 Test.8;
    let Test.24 = 1i64;
    let Test.25 = GetTagId Test.23;
    let Test.28 = lowlevel Eq Test.24 Test.25;
    if Test.28 then
        let Test.20 = StructAtIndex 0 Test.8;
        let Test.21 = 1i64;
        let Test.22 = GetTagId Test.20;
        let Test.27 = lowlevel Eq Test.21 Test.22;
        if Test.27 then
            let Test.19 = StructAtIndex 0 Test.8;
            let Test.4 = UnionAtIndex (Id 1) (Index 0) Test.19;
            let Test.18 = StructAtIndex 1 Test.8;
            let Test.5 = UnionAtIndex (Id 1) (Index 0) Test.18;
            let Test.16 = 0i64;
            let Test.10 = CallByName List.4 Test.2 Test.16 Test.5;
            let Test.11 = 0i64;
            let Test.9 = CallByName List.4 Test.10 Test.11 Test.4;
            ret Test.9;
        else
            dec Test.2;
            jump Test.26;
    else
        dec Test.2;
        jump Test.26;

procedure Test.0 ():
    let Test.39 = 1i64;
    let Test.40 = 2i64;
    let Test.7 = Array [Test.39, Test.40];
    let Test.6 = CallByName Test.1 Test.7;
    ret Test.6;